FAULTS: THRUST / REVERSE; NORMAL

THRUST / REVERSE FAULTS

DESCRIPTION: Reverse Faults are those in which the Hanging Wall has moved up with respect to the Foot Wall. A Thrust Fault is a low angle Reverse Fault.  Due to the low angle, it is not uncommon for older rock to be shoved long distances OVER younger rock.

PRE-DEVONIAN 

DEVONIAN

CARBONIFEROUS

Figure 1 - Three Peaks of Chetamon in Jasper National Park

K

M

NORMAL FAULTS

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DESCRIPTION - Normal Faults are those in which the Hanging Wall slides down the inclined fault plane with respect to the Foot Wall. These type of faults are caused by Tensional forces pulling apart the earth.